Table 1.
Effects of WSHM on nodulation of M. sativa inoculated with S. melilotiΔqsrR or S. meliloti 8530 (WT) in the greenhouse∗.
| Treatment | Nodule | Plant dry weight (mg/pot) | ||
|---|---|---|---|---|
| Number of nodules | Fresh weight of | Nitrogenase activity | ||
| per pot# | nodule (mg/pot) | (μmol C2H4 /h ⋅ g) | ||
| Control | 0 | 0 | 0 | 46.4 ± 6.3a |
| WSHM | 0 | 0 | 0 | 48.9 ± 10.1a |
| WT | 21.75 ± 2.99ab | 16.86 ± 3.35a | 11.75 ± 2.56a | 83.0 ± 7.0b |
| WT+WSHM | 24.60 ± 2.30b | 21.90 ± 5.03a | 18.38 ± 5.64b | 158.0 ± 26.0c |
| ΔqsrR | 24.75 ± 7.14ab | 20.24 ± 8.08a | 19.92 ± 4.55b | 87.0 ± 49.0b |
| ΔqsrR+WSHM | 16.40 ± 3.51a | 21.37 ± 7.28a | 17.19 ± 3.84ab | 98.0 ± 11.0b |
∗Values are expressed as average ± standard deviation (n = 7). Values in the same column that have different letters are statistically significant as assessed by Duncan test (P < 0.05). #Three plants were included in each pot.